Here is a little information on Phaze Demesnes in the Piers
Anthony novel Split Infinity as interpreted in Second Life.

Phaze is a lush and verdant world. Besides humans,
it is also populated by several species common to the fantasy genre
such as unicorns, werewolves, vampires, trolls, and animalheads
-- humans with beast-heads. As in classic fantasy
fiction, magic is a daily part of life in Phaze. It is powered by
Phazite, the same substance as Protonite on the other side of the
curtain.

The ViIllage of the little people
( click for a large version )

Phaze is a luscious green healthy planet with clean pure air and
3 moons. Magic operates in Phaze instead of science. Mining of the
mineral Phazite charges the magic and allows spells to be
made. Just as magic does not work in Proton, advanced
technology does not operate in Phaze.

Elven Glen

The intelligent inhabitants of Phaze are both human
andanimal forms, including elves, unicorns, werewolves,
fairies, vampires, and trolls.
Many of the inhabitants can change shape or form. All
inhabitants' posses a small level of magic. The exceptions
are the Adepts, all extremely powerful wizards, each with his
or her own special mode of magic use, and their own land, called a
Demesnes.

A village in Phaze

The Adverse Adepts are trying to seize power in Phaze. The
most powerful of all the Adepts, the Blue Adept, has been
strangled by a magic amulet, and his soul is lost in
Phaze. His wife, the Lady Blue, protects his
Demesnes in his absence, with help from her special animal friends
and the inanimate golems provided to her by the Brown Adept.

Just as magic does not work in Proton, advanced technology does
not operate in Phaze. For instance, when one of Proton's self-willed
robots crossed the curtain into Phaze, she became inert until
returned to her home dimension. Later, the same robot was magically
made into a golem,
allowing her to operate in both worlds, using electrical power in
Proton, and magical power in Phaze.

Most humans in Phaze are able to do some minor magic but are not
magicians by trade. The exceptions are the Adepts, extremely
powerful wizards, each with his or her own special mode of magic
use. Most of the Adepts in Phaze are named after colors; for
instance, the Brown Adept makes and animates golems while the White
Adept performs magic by drawing sigils
in the ground. Not only are Adepts able to achieve almost anything
through their magic, only they are powerful enough to magically
affect resistant creatures such as unicorns and animalheads. As a
rule, Adepts cannot harm or otherwise affect another Adept through
magic for very long; however, a group of them working in concert can
usually overpower a lone Adept. Each spell an Adept uses can only be
worked once by that Adept, though countless variations can be
created.

Unicorns in the Apprentice Adept series are somewhat different
from those traditionally described in fantasy. First, Phaze's
unicorns are as intelligent as humans. Also, they are not colored in
blacks and greys like horses but rather in more dramatic colors. For
instance, one unicorn character, Clip, is a blue stallion with red
"socks," that is, ankles. In addition to their coloring,
unicorns with socks can actually remove them. If humans don them,
the socks cast the illusion that the human is in fact a unicorn of
the sock color. Furthermore, unicorns in Phaze are shapeshifters;
most can learn two other forms. If a unicorn learns to shift into a
hawk, he can fly in that form; if a human, he can speak. Finally,
unicorns in the series have hollow horns which they use as musical
instruments. Each unicorn character described in the books has a
distinct instrument. For instance, Clip's horn sounds like a
saxophone, while his sister Neysa's horn makes harmonica sounds.

Neysa, Dam of Fleta

One final, important feature of Phaze is the Oracle. Although the
actual Oracle is hidden from sight for reasons explained later in
the series, it is accessible through a speaking tube. The Oracle
will answer any querent a single question. But like the original Oracle
at Delphi, the pronouncements of Phaze's Oracle are usually
cryptic and self-fulfilling.